| /* |
| * _gbk.c: the GBK codec |
| * |
| * Written by Hye-Shik Chang <perky@FreeBSD.org> |
| * $CJKCodecs: _gbk.c,v 1.2 2003/12/31 05:46:55 perky Exp $ |
| */ |
| |
| #include "codeccommon.h" |
| #include "tweak_gbk.h" |
| |
| ENCMAP(gbcommon) |
| DECMAP(gb2312) |
| DECMAP(gbkext) |
| |
| ENCODER(gbk) |
| { |
| while (inleft > 0) { |
| Py_UNICODE c = IN1; |
| DBCHAR code; |
| |
| if (c < 0x80) { |
| WRITE1(c) |
| NEXT(1, 1) |
| continue; |
| } |
| UCS4INVALID(c) |
| |
| RESERVE_OUTBUF(2) |
| |
| GBK_PREENCODE(c, code) |
| else TRYMAP_ENC(gbcommon, code, c); |
| else return 1; |
| |
| OUT1((code >> 8) | 0x80) |
| if (code & 0x8000) |
| OUT2((code & 0xFF)) /* MSB set: GBK */ |
| else |
| OUT2((code & 0xFF) | 0x80) /* MSB unset: GB2312 */ |
| NEXT(1, 2) |
| } |
| |
| return 0; |
| } |
| |
| DECODER(gbk) |
| { |
| while (inleft > 0) { |
| unsigned char c = IN1; |
| |
| RESERVE_OUTBUF(1) |
| |
| if (c < 0x80) { |
| OUT1(c) |
| NEXT(1, 1) |
| continue; |
| } |
| |
| RESERVE_INBUF(2) |
| |
| GBK_PREDECODE(c, IN2, **outbuf) |
| else TRYMAP_DEC(gb2312, **outbuf, c ^ 0x80, IN2 ^ 0x80); |
| else TRYMAP_DEC(gbkext, **outbuf, c, IN2); |
| else return 2; |
| |
| NEXT(2, 1) |
| } |
| |
| return 0; |
| } |
| |
| #include "codecentry.h" |
| BEGIN_CODEC_REGISTRY(gbk) |
| MAPOPEN(zh_CN) |
| IMPORTMAP_DEC(gb2312) |
| IMPORTMAP_DEC(gbkext) |
| IMPORTMAP_ENC(gbcommon) |
| MAPCLOSE() |
| END_CODEC_REGISTRY(gbk) |